plutonic

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adjective plu·ton·ic \plü-ˈtä-nik\

Definition of plutonic

  1. 1 :  formed by solidification of magma deep within the earth and crystalline throughout <plutonic rock>

  2. 2 often capitalized :  plutonian

Origin and Etymology of plutonic

Latin Pluton-, Pluto


First Known Use: 1596

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